计算全息中的三维物体表面向量化数值计算研究

Research on the Vector Numerical Calculation of 3D Object Surface for Computational Holography

三维物体全息图的计算,要反复进行三维菲涅耳积分计算,而三维物体的菲涅耳积分计算量是巨大的,需要研究三维物体菲涅耳积分快速算法。本文利用Matlab编程实现了曲面法向量的数值计算,为在计算全息图的实现时较大幅度地减小计算量奠定基础。

The calculation of 3D object hologram must be repeated for 3D Fresnel integral calculation,but the Fresnel integral of three dimensional object is huge. It is needed to study the fast algorithm of Fresnel integral. In this paper,the numerical calculation of the surface normal vector is realized by Matlab programming. It is laid the foundation for us to greatly reduce the amount of computation in the realization of the computer generated hologram.